Medical expert Eduard Estivill has shared the reasons behind the successful careers of Portuguese star Cristiano Ronaldo and Argentina’s World Cup-winning captain Lionel Messi.

In a podcast, Eduard said, “Both star footballers have a sleep coach, which tells them how many hours of sleep they need. They use a lot of energy during the game, and they need to get adequate sleep to maintain their health.”

Despite having a long football career, legendary players remain in the headlines due to numerous achievements.

Ronaldo has recently achieved 900 career goals while he is aiming to complete his 1000 career goals.

On the other hand, Inter Miami striker and Argentina captain Lionel Messi has scored seven goals in six matches for his club. Messi is almost 40 years old, but he has not given any indication of retirement.